<template>
  <div>
    <!-- 面包屑导航栏 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片 -->
    <el-card class="box-card">
      <!-- 搜索和添加用户 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入用户名" class="input-with-select" v-model="queryInfo.query" clearable @clear="getUserList()">
            <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 展示用户列表 -->
      <el-table :data="userList" stripe border>
        <el-table-column label="序号" type="index" width="50px"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="changeUserState(scope.row)"> </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="showRoleDialog(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        background
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
      <!-- 添加用户对话框 -->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="30%" @close="addDialogClosed">
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password" show-password></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框 -->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="30%" @close="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog title="分配角色" :visible.sync="roleDialogVisible" width="30%" @close="setRoleDialogClosed">
        <div>
          <p>当前的用户：{{ userInfo.username }}</p>
          <p>当前的角色：{{ userInfo.role_name }}</p>
          <p>
            分配新角色：
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option v-for="item in roleList" :key="item.id" :label="item.roleName" :value="item.id"> </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="roleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="allotRole">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1, //页码
        pagesize: 5, //页大小
      },
      userList: [],
      total: 0,
      // 控制添加用户表单的显示与隐藏
      addDialogVisible: false,
      // 添加用户表单的数据对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 添加用户表单的校验规则
      addFormRules: {
        username: [
          { required: true, message: '请输入登录账户', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '账户名为3~10个字符组成',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码为6~15个字符组成', trigger: 'blur' },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            pattern: /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/,
            message: '邮箱格式不正确',
            trigger: 'blur',
          },
        ],
        mobile: [
          { required: true, message: '请输入电话号码', trigger: 'blur' },
          {
            pattern: /^(0|86|17951)?(13[0-9]|15[012356789]|166|17[3678]|18[0-9]|14[57])[0-9]{8}$/,
            message: '电话号码格式不正确',
            trigger: 'blur',
          },
        ],
      },

      // 控制修改用户表单的显示与隐藏
      editDialogVisible: false,
      // 修改用户表单的数据对象
      editForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 修改用户表单的校验规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            pattern: /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/,
            message: '邮箱格式不正确',
            trigger: 'blur',
          },
        ],
        mobile: [
          { required: true, message: '请输入电话号码', trigger: 'blur' },
          {
            pattern: /^(0|86|17951)?(13[0-9]|15[012356789]|166|17[3678]|18[0-9]|14[57])[0-9]{8}$/,
            message: '电话号码格式不正确',
            trigger: 'blur',
          },
        ],
      },

      // 控制分配角色对话框的显示与隐藏
      roleDialogVisible: false,
      // 被分配角色的用户信息
      userInfo: {},
      // 角色列表
      roleList: [],
      selectedRoleId: null
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取用户数据列表
    async getUserList() {
      const { data: res } = await this.$http('/users', {
        params: this.queryInfo,
      })
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户数据失败！')
      }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(pagesize) {
      this.queryInfo.pagesize = pagesize
      this.getUserList()
    },
    // 监听 pagenum 改变的事件
    handleCurrentChange(pagenum) {
      this.queryInfo.pagenum = pagenum
      this.getUserList()
    },
    // 监听 switch 开关用户状态的更新
    async changeUserState(userInfo) {
      const { data: res } = await this.$http.put('users/' + userInfo.id + '/state/' + userInfo.mg_state)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('用户状态更新失败！')
      }
      this.$message.success('用户状态更新成功！')
    },
    // 清空addFrom
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) {
          return
        }
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败！')
        }
        // 关闭添加用户对话框
        this.addDialogVisible = false
        // 显示更新后的用户列表
        this.getUserList()
        // 弹出添加成功提示
        this.$message.success('添加用户成功！')
      })
    },

    // 获取修改用户的数据
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 清空editForm
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户
    editUser() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) {
          return
        }
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile,
        })
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户信息失败！')
        }
        // 关闭修改用户对话框
        this.editDialogVisible = false
        // 显示更新后的用户列表
        this.getUserList()
        // 弹出修改成功提示
        this.$message.success('修改用户信息成功！')
      })
    },

    // 删除用户
    removeUserById(id) {
      this.$confirm('确定要删除该用户?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      })
        .then(async () => {
          const { data: res } = await this.$http.delete('users/' + id)
          if (res.meta.status !== 200) {
            return this.$message.error('删除用户失败！')
          }
          this.getUserList()
          this.$message.success('删除用户成功！')
        })
        .catch(() => {
          this.$message.info('已取消删除')
        })
    },

    // 清空分配角色对话框中的数据
    setRoleDialogClosed() {
      this.selectedRoleId = null,
      this.userInfo = {}
    },
    // 分配新角色
    async allotRole() {
      // 判断是否选择角色
      if(!this.selectedRoleId){
        return this.$message.error('请选择角色！')
      }
      const {data:res} = await this.$http.put('users/'+this.userInfo.id+'/role',{ rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        this.roleDialogVisible = false
        return this.$message.error(res.meta.msg)
      }
      this.roleDialogVisible = false
      this.getUserList()
      this.$message.success('更新角色成功！')
    },
    // 获取被修改角色用户的信息
    async showRoleDialog(userInfo) {
      this.userInfo = userInfo
      // 获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.roleList = res.data
      this.roleDialogVisible = true
    },
  },
}
</script>

<style lang="less" scoped></style>
